Long-lived direct and indirect interlayer excitons in van der Waals heterostructures
arXiv:1703.09566 · doi:10.1021/acs.nanolett.7b01304
Abstract
We investigate the photoluminescence of interlayer excitons in heterostructures consisting of monolayer MoSe2 and WSe2 at low temperatures. Surprisingly, we find a doublet structure for such interlayer excitons. Both peaks exhibit long photoluminescence lifetimes of several ten nanoseconds up to 100 ns at low temperatures, which verifies the interlayer nature of both. The peak energy and linewidth of both show unusual temperature and power dependences. In particular, we observe a blue-shift of their emission energy for increasing excitation powers. At a low excitation power and low temperatures, the energetically higher peak shows several spikes. We explain the findings by two sorts of interlayer excitons; one that is indirect in real space but direct in reciprocal space, and the other one being indirect in both spaces. Our results provide fundamental insights into long-lived interlayer states in van der Waals heterostructures with possible bosonic many-body interactions
18 pages, 5 figures
References in corpus (15)
- 2D materials and van der Waals heterostructures
- Observation of Long-Lived Interlayer Excitons in Monolayer MoSe2-WSe2 Heterostructures
- Measurement of the optical dielectric function of transition metal dichalcogenide monolayers: MoS2, MoSe2, WS2 and WSe2
- Strong interlayer coupling in van der Waals heterostructures built from single-layer chalcogenides
- Determination of band alignment in the single layer MoS2/WSe2 heterojunction
- High-temperature superfluidity with indirect excitons in van der Waals heterostructures
- Probing dark excitons in atomically thin semiconductors via near-field coupling to surface plasmon polaritons
- Interlayer Exciton Optoelectronics in a 2D Heterostructure p-n Junction
- Interlayer exciton dynamics in a dichalcogenide monolayer heterostructure
- Direct exciton emission from atomically thin transition metal dichalcogenide heterostructures near the lifetime limit
- Microsecond dark-exciton valley polarization memory in 2D heterostructures
- Directional Interlayer Spin-Valley Transfer in Two-Dimensional Heterostructures
- Coherence and Optical Emission from Bilayer Exciton Condensates
- Confocal shift interferometry of coherent emission from trapped dipolar excitons
- Collective electronic excitation in a trapped ensemble of photogenerated dipolar excitons and free holes revealed by inelastic light scattering
Cited by in corpus (118)
- Signatures of moiré-trapped valley excitons in MoSe/WSe heterobilayers
- Control of interlayer excitons in two-dimensional van der Waals heterostructures
- Momentum-space indirect interlayer excitons in transition metal dichalcogenide van der Waals heterostructures
- Ultrafast transition between exciton phases in van der Waals heterostructures
- Enhanced Light-Matter Interaction in Two-Dimensional Transition Metal Dichalcogenides
- Double Indirect Interlayer Exciton in a MoSe2/WSe2 van der Waals Heterostructure
- Broken mirror symmetry in excitonic response of reconstructed domains in twisted MoSe/MoSe bilayers
- Twist Angle Dependent Interlayer Exciton Lifetimes in van der Waals Heterostructures
- Indirect excitons in van der Waals heterostructures at room temperature
- Design of van der Waals Interfaces for Broad-Spectrum Optoelectronics
- Microsecond dark-exciton valley polarization memory in 2D heterostructures
- Moiré Intralayer Excitons in a MoSe/MoS Heterostructure
- Tunable Phases of Moiré Excitons in van der Waals Heterostructures
- Probing the inter-layer exciton physics in a MoS/MoSe/MoS van der Waals heterostructure
- Moiré Potential Impedes Interlayer Exciton Diffusion in van der Waals Heterostructures
- Inter- and intra-layer excitons in MoS/WS and MoSe/WSe heterobilayers
- Interlayer excitons in MoSe/WSe heterostructures from first-principles
- Discrete Interactions between a few Interlayer Excitons Trapped at a MoSe-WSe Heterointerface
- Giant Valley-Zeeman Splitting from Spin-Singlet and Spin-Triplet Interlayer Excitons in WSe2/MoSe2 Heterostructure
- Highly Valley-Polarized Singlet and Triplet Interlayer Excitons in van der Waals Heterostructure
- Twistronics: A turning point in 2D quantum materials
- Moiré excitons in MoSe-WSe heterobilayers and heterotrilayers
- Cavity-control of bright and dark interlayer excitons in van der Waals heterostructures
- Localized bright luminescence of indirect excitons and trions in MoSe/WSe van der Waals heterostructure
- Interlayer excitons in van der Waals heterostructures: Binding energy, Stark shift, and field-induced dissociation
- Upconverted electroluminescence via Auger scattering of interlayer excitons in van der Waals heterostructures
- Condensation signatures of photogenerated interlayer excitons in a van der Waals heterostack
- Exciton optics, dynamics and transport in atomically thin semiconductors
- Observation of Inter-layer Excitons in MoSe2 Single Crystals
- Enhanced interlayer neutral excitons and trions in trilayer van der Waals heterostructures
- Ultrafast charge-transfer dynamics in twisted MoS/WSe heterostructures
- Moiré and beyond in transition metal dichalcogenide twisted bilayers
- Nanoscale trapping of interlayer excitons in a 2D semiconductor heterostructure
- Moiré-trapped interlayer trions in a charge-tunable WSe/MoSe heterobilayer
- Control of the orbital character of indirect excitons in MoS2/WS2 heterobilayers
- Electrically controlled emission from singlet and triplet exciton species in atomically thin light emitting diodes
- Quantum phase transitions of tri-layer excitons in atomically thin heterostructures
- First-Principles Calculations of Exciton Radiative Lifetimes in Monolayer Graphitic Carbon Nitride Nanosheets: Implications for Photocatalysis
- Interlayer Exciton Diode and Transistor
- Time-domain observation of interlayer exciton formation and thermalization in a MoSe/WSe heterostructure
- Intervalley Scattering of Interlayer Excitons in a MoS/MoSe/MoS Heterostructure in High Magnetic Field
- Emergence of highly linearly polarized interlayer exciton emission in MoSe/WSe heterobilayers with transfer-induced layer corrugation
- Optical dipole orientation of interlayer excitons in MoSe-WSe heterostacks
- Electrical tuning of moiré excitons in MoSe bilayers
- Dimensionality of excitons in stacked van der Waals materials: The example of hexagonal boron nitride
- Dominating Interlayer Resonant Energy Transfer in Type-II 2D Heterostructure
- Temporal evolution of low-temperature phonon sidebands in WSe monolayers
- Flipping exciton angular momentum with chiral phonons in MoSe/WSe heterobilayers
- Electrical control of inter-layer excitons in van der Waals heterostructures
- Coherent exciton-exciton interactions and exciton dynamics in a MoSe\textsubscript{2}/WSe\textsubscript{2} heterostructure
- Electrostatics of electron-hole interactions in van der Waals heterostructures
- Light-matter interaction in van der Waals heterostructures
- Imaging dynamic exciton interactions and coupling in transition metal dichalcogenides
- Extended spatial coherence of interlayer excitons in MoSe/WSe heterobilayers
- Complexes of dipolar excitons in layered quasi-two-dimensional nanostructures
- Valley Degree of Freedom in Two-Dimensional van der Waals Materials
- Bosonic Delocalization of Dipolar Moiré Excitons
- Exciton-exciton interactions in van der Waals heterobilayers
- Ultrafast phonon-driven charge transfer in van der Waals heterostructures
- Voltage-controlled long-range propagation of indirect excitons in van der Waals heterostructure
- Exciton-phonon-scattering: A competition between bosonic and fermionic nature of bound electron-hole pairs
- A colloquium on the variational method applied to excitons in 2D materials
- Interlayer exciton valley polarization dynamics in large magnetic fields
- Twist angle dependent interlayer transfer of valley polarization from excitons to free charge carriers in WSe/MoSe heterobilayers
- Leaky exciton condensates in transition metal dichalcogenide moiré bilayers
- Tuning of impurity-bound interlayer complexes in a van der Waals heterobilayer
- Quantum phase transition of a two-dimensional quadrupolar system
- Signatures of electric field and layer separation effects on the spin-valley physics of MoSe/WSe heterobilayers: from energy bands to dipolar excitons
- Excitonic response in TMD heterostructures from first-principles: impact of stacking, twisting, and interlayer distance
- Magnetoexcitons in transition-metal dichalcogenides monolayers, bilayers, and van der Waals heterostructures
- Anomalous exciton transport in response to a uniform, in-plane electric field
- Van der Waals Nanoantennas on Gold as Hosts for Hybrid Mie-Plasmonic Resonances
- Electrically tunable dipolar interactions between layer-hybridized excitons
- Thickness and twist angle dependent interlayer excitons in metal monochalcogenide heterostructures
- Phonon-assisted Exciton Dissociation in Transition Metal Dichalcogenides
- Phonons in MoSe2/WSe2 van der Waals heterobilayer
- Enhancement in optically induced ultrafast THz response of MoSe2MoS2 heterobilayer
- Charge Density Wave Activated Excitons in TiSe-MoSe Heterostructures
- Excitonic theory of doping-dependent optical response in atomically thin semiconductors
- Crystal Phases of Charged Interlayer Excitons in van der Waals Heterostructures
- Impact of atomic reconstruction on optical spectra of twisted TMD homobilayers
- Optical probing in a bilayer dark-bright condensate system
- Interlayer excitonic spectra of vertically stacked MoSe/WSe heterobilayers
- Gate-tunable trion switch for excitonic device applications
- Direct visualization of hybrid excitons in van der Waals heterostructures
- Approaching the Intrinsic Properties of Moiré Structures Using Atomic Force Microscopy Ironing
- Controlling Single-Photon Emission with Ultrathin Transdimensional Plasmonic Films
- Interlayer exciton polaritons in homobilayers of transition metal dichalcogenides
- Intercavity polariton slows down dynamics in strongly coupled cavities
- Polarization and charge-separation of moiré excitons in van der Waals heterostructures
- Electrical control of orbital and vibrational interlayer coupling in bi- and trilayer 2H-MoS
- Long-distance decay-less spin transport in indirect excitons in a van der Waals heterostructure
- Experimental evidences of quantum confined 2D indirect excitons in single barrier GaAs/AlAs/GaAs heterostructure using photocapacitance at room temperature
- Electrically controlled emission from triplet charged excitons in atomically thin heterostructures
- Interlayer Raman modes in twisted bilayer TMDCs
- Trapping Interlayer Excitons in van der Waals Heterostructures by Potential Arrays
- Magnetic-Field-Induced Wigner Crystallization of Charged Interlayer Excitons in van der Waals Heterostructures
- Two dimensional semiconductors: optical and electronic properties
- Third-order polarizability of interlayer excitons in hetero-bilayers
- Interplay of trapped species and absence of electron capture in Moiré heterobilayers
- Electrically controllable router of interlayer excitons
- Fermionic vs. bosonic thermalization in the phonon-driven exciton dynamics: An analytic dimensionality study
- Robustness of momentum-indirect interlayer excitons in MoS2/WSe2 heterostructure against charge carrier doping
- Electrically tunable MoSe/WSe heterostructure-based quantum dot
- Highly tunable quantum light from moiré trapped excitons
- Exciton Transport under Periodic Potential in MoSe2/WSe2 Heterostructures
- Effect of exciton-phonon coupling on the interlayer excitons in transition metal dichalcogenides double layers
- Understanding the Effects of Dielectric Property, Separation Distance, and Band Alignment on Interlayer Excitons in 2D Hybrid MoS2/WSe2 Heterostructures
- Variational and field-theoretical approach to exciton-exciton interactions and biexcitons in semiconductors
- Plasmon-Enhanced Interface Charge Transfer Exciton of 2D In-Plane Lateral and van Der Waals MoS/WS Heterostructures
- Ferroelectric Control of Interlayer Excitons in 3R-MoS / MoSe Heterostructures
- Laterally Extended States of Interlayer Excitons in Reconstructed MoSe/WSe Heterostructures
- Limits of funneling efficiency in non-uniformly strained 2D semiconductors
- Exchange-Correlation Functionals in 2D Materials: Applications, Challenges, and Limitations
- Robust Interlayer Exciton Interplay in Twisted van der Waals Heterotrilayer on a Broadband Bragg Reflector up to Room Temperature
- Moire-Engineered Excitonic Landscape and Phonon-Mediated Recombination in Twisted WSe2 Bilayers
- Quantum siphoning of finely spaced interlayer excitons in reconstructed MoSe2/WSe2 heterostructures
- Quantum Dot in a Hybrid Structure with Dipolar Excitons